Abstract: The present invention relates to an insole, midsole or unified outsole-midsole-insole device for use with an article of footwear, displaying significant improvement over conventional similar insole type products through its ability to offer to the wearer an adjustable biofeedback component for the rehabilitation and strengthening of the foot's muscles, as well as an adjustable motion control component for the purpose of controlling the pronation and arch deflection of the human foot during gait. Through this means wearers of the device gradually strengthen their foot while simultaneously decreasing their dependence on secondary motion control structures.